Alcatel 060320-10, Rev. B Configuration Manual page 5

Contents
BGP Configuration Overview .......................................................................................3-17
Starting BGP .................................................................................................................3-18
Setting Global BGP Parameters ....................................................................................3-20
Configuring a BGP Peer ................................................................................................3-26
Configuring Aggregate Routes .....................................................................................3-32
Configuring Local Routes (Networks) ..........................................................................3-33
Controlling Route Flapping Through Route Dampening ..............................................3-36
Setting Up Route Reflection .........................................................................................3-40
Working with Communities ..........................................................................................3-43
Creating a Confederation ..............................................................................................3-44
OmniSwitch AOS Release 7 Advanced Routing Configuration Guide
Autonomous Systems (ASs) .....................................................................................3-6
Internal vs. External BGP .........................................................................................3-7
Communities ............................................................................................................3-8
Route Reflectors .......................................................................................................3-9
BGP Confederations ...............................................................................................3-11
Policies ...................................................................................................................3-12
Regular Expressions ........................................................................................3-13
Route Dampening ...................................................................................................3-16
CIDR Route Notation .............................................................................................3-16
Disabling BGP ........................................................................................................3-18
Setting the Router AS Number ...............................................................................3-21
Setting the Default Local Preference .....................................................................3-21
Enabling AS Path Comparison ...............................................................................3-22
Controlling the use of MED Values .......................................................................3-23
Synchronizing BGP and IGP Routes .....................................................................3-24
Displaying Global BGP Parameters .......................................................................3-25
Creating a Peer .......................................................................................................3-28
Restarting a Peer .....................................................................................................3-29
Setting the Peer Auto Restart .................................................................................3-29
Changing the Local Router Address for a Peer Session .........................................3-30
Clearing Statistics for a Peer ..................................................................................3-30
Setting Peer Authentication ....................................................................................3-31
Setting the Peer Route Advertisement Interval ......................................................3-31
Configuring a BGP Peer with the Loopback0 Interface ..................................3-31
Adding the Network ........................................................................................3-33
Configuring Network Parameters ....................................................................3-34
Viewing Network Settings ..............................................................................3-35
Example: Flapping Route Suppressed, then Unsuppressed ............................3-36
Enabling Route Dampening ............................................................................3-37
Configuring Dampening Parameters ...............................................................3-37
Clearing the History ........................................................................................3-39
Displaying Dampening Settings and Statistics ................................................3-39
Configuring Route Reflection ................................................................................3-42
Redundant Route Reflectors ...................................................................................3-42
March 2011 v